钢帘线和切割丝用钢夹杂物控制技术的进展

特殊钢 ›› 2016, Vol. 37 ›› Issue (2): 26-31.

钢帘线和切割丝用钢夹杂物控制技术的进展

王昆鹏¹，姜敏¹，王新华¹，王郢²，赵昊乾²

1. 北京科技大学冶金与生态工程学院，北京 100083 ；
2. 邢台钢铁有限责任公司，邢台 054027;

收稿日期:2015-11-19 出版日期:2016-04-01 发布日期:2022-08-06
作者简介:王昆鹏(1988-)，男，博士生(北京科技大学)，2010年昆明理工大学(本科)毕业,特殊钢夹杂物控制技术研究。
基金资助:
国家自然科学资金项目资助(51304013)

Progress of Control Technology of Inclusions in Steel for Tyre Cord and Saw Wire

Wang Kunpeng¹ , Jiang Min¹ , Wang Xinhua¹ , Wang Ying² , Zhao Haoqian²

1. School of Metallurgical and Ecological Engineering, University of Science and Technology, Beijing 100083 ；
2. Xingtai Iron and Steel Corp Ltd, Xingtai 054027;

Received:2015-11-19 Published:2016-04-01 Online:2022-08-06

摘要/Abstract

摘要： 综述了钢帘线和切割丝用钢"BOF-LF精炼-连续浇铸"工艺过程中夹杂物的控制技术。冶炼过程中通常采用Si—Mn脱氧,严格控制钢液中的Als及低碱度（CaO/SiO₂≤1.0）渣系精炼等措施实现钢中夹杂物塑性化。生产实践表明,夹杂物塑性化并不完全等于低熔点化,一些厂家切割丝用盘条中MnO—SiO₂-Al₂O₃系夹杂并未控制在低熔点区域,但轧制过程变形良好;生产过程中应避免由耐火材料引起的硬质外来夹杂;浇铸所涉及的Al₂O₃质耐火材料改用非Al₂O₃质材料可有效降低盘条拉拔过程中的断丝率。

关键词: BOF-LF-CC流程, 钢帘线和切割丝, 夹杂物, Si-Mn脱氧, Als, 顶渣精炼, 耐火材料

Abstract: The control technology of inclusions in steel for tyre cord and saw wire in "BOF-LF refining-Bloom CC" process is summarily reviewed. The plasticization of inclusions in steel is realized by using the measures including using Si- Mn deoxidation, strictly controlling Als content in liquid and refining with low basicity (CaO/SiO₂≤1.0) slag. Production practice shows that the plasticization of inclusions in steel is not fully equal to controlling inclusion in low-melting point region, at some steelworks the MnO-SiO₂-Al₂O₃ series inclusions in coil for saw wire are not controlled in low-melting point region but these inclusions are nicely deformable during rolling process. The exogenous inclusions caused by refractories should be avoided in production process and the frequency of wire breakage could be remarkably reduced by changing the Al₂O₃ based refractories used in casting process into non-Al₂O₃ based refractory materials.

Key words: BOF-LF-CC Flowsheet, Tyre Cord and Saw Wire, Inclusions, Si-Mn Deoxidation, Als, Top Slag Refining, Refractories

王昆鹏, 姜敏, 王新华, 王郢, 赵昊乾. 钢帘线和切割丝用钢夹杂物控制技术的进展[J]. 特殊钢, 2016, 37(2): 26-31.

Wang Kunpeng , Jiang Min , Wang Xinhua , Wang Ying , Zhao Haoqian. Progress of Control Technology of Inclusions in Steel for Tyre Cord and Saw Wire[J]. Special Steel, 2016, 37(2): 26-31.

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